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We specify the bundle's activator class via the Bundle-Activator attribute and also specify that our class imports the OSGi core framework package and the dictionary service interface package via the Import-Package attribute. The dictionary service interface package will be fulfilled by the bundle in Example 2, which exports this package. The OSGi framework will automatically handle the details of resolving import packages. (Note: Make sure your manifest file ends in a trailing carriage return or else the last line will be ignored.)

To compile our source code, we need to have the felix.jar file (found in Felix' bin directory) and the example2.jar file in our class path. We compile the source file using a command like:

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To run Felix, we follow the instructions described in usage.html. When we start Felix, it asks for a profile name, we will put all of our bundles in a profile named tutorial. After running Felix, we should check that all tutorial bundles are stopped, except for the English dictionary service bundle from Example 2. We can use the Felix ps lb shell command to get a list of all bundles, their state, and their bundle identifier number. If the Example 2 bundle is not active, we should start the bundle using the start command along with the bundle's identifier number displayed by the ps lb command and stop any other unneeded tutorial bundles using the stop command. (Note: Felix uses some bundles to provide its command shell, so do not stop these bundles.) Now we can install and start our dictionary client bundle. Assuming that we created our bundle in the directory c:\tutorial, we can install and start it in Felix' shell using the following command:

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The above command installs and starts the bundle in a single step; it is also possible to install and start the bundle in two steps by using the Felix install and start shell commands. When we start the bundle, it will use the shell thread to prompt us for words. Enter one word at a time to check the words and enter a blank line to stop checking words. To restart the bundle, we must use the Felix shell ps lb command to get the bundle identifier number for the bundle and first use the stop command to stop the bundle, then the start command to restart it. To test the dictionary service, enter any of the words in the dictionary (e.g., "welcome", "to", "the", "OSGi", "tutorial") or any word not in the dictionary.

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